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	<title>Surface Production Facility &#187; Well Site Troubleshooting</title>
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	<description>Oil and Gas Production Facility Design</description>
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		<title>Wellhead Troubleshooting &#8211; Tagging Bottom</title>
		<link>http://www.process-facility.com/wellhead-troubleshooting-tagging-bottom.html</link>
		<comments>http://www.process-facility.com/wellhead-troubleshooting-tagging-bottom.html#comments</comments>
		<pubDate>Sun, 04 Oct 2009 12:41:43 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Well Site Troubleshooting]]></category>
		<category><![CDATA[wellhead]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2267</guid>
		<description><![CDATA[




Rapidly opening the wellhead valves on a high pressure well flowing into a low pressure collection system is a good way to ruin a well when the following two criteria are met:
• The wellhead choke is large.
• The well has been shut-in for a while.
The surge of gas flow resulting from following this procedure may, [...]]]></description>
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		<title>Well Site &#8211; Soap Sticks</title>
		<link>http://www.process-facility.com/well-site-soap-sticks.html</link>
		<comments>http://www.process-facility.com/well-site-soap-sticks.html#comments</comments>
		<pubDate>Sat, 03 Oct 2009 23:37:30 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>
		<category><![CDATA[Well Site]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2253</guid>
		<description><![CDATA[




Equation 5 implies that the lower the density of the liquid accumulating in the tubing, the lower the entrainment velocity. This means that less gas flow is required to keep a well unloaded of liquids, when the liquid density is reduced. Addition of soap sticks to a well is a simple method to reduce the [...]]]></description>
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		<title>Well Site &#8211; Problem With Use Of Intermitters</title>
		<link>http://www.process-facility.com/well-site-problem-with-use-of-intermitters.html</link>
		<comments>http://www.process-facility.com/well-site-problem-with-use-of-intermitters.html#comments</comments>
		<pubDate>Sat, 03 Oct 2009 23:28:29 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>
		<category><![CDATA[Intermitters]]></category>
		<category><![CDATA[Well Site]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2250</guid>
		<description><![CDATA[




The valve trim on the intermitter should be at least twice the diameter of the choke. When the intermitter valve opens it should not restrict gas flow from the well. Unfortunately, if the wellhead pressure builds to an excessive level, the sudden surge in gas flow when the intermitter opens may have two detrimental effects:

1. [...]]]></description>
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		<title>Well Site &#8211; Keeping Wells Unloaded</title>
		<link>http://www.process-facility.com/well-site-keeping-wells-unloaded.html</link>
		<comments>http://www.process-facility.com/well-site-keeping-wells-unloaded.html#comments</comments>
		<pubDate>Sat, 03 Oct 2009 01:24:16 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>
		<category><![CDATA[Well Site]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2229</guid>
		<description><![CDATA[Mr. Howlaway eyed my equations suspiciously, &#8220;I can see that you have developed a method to predict the combination of the gas production rate and wellhead pressure necessary to keep my wells from loading -up with liquid. But suppose the production rate that the reservoir can support is too low, or the wellhead pressure is [...]]]></description>
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		<title>Well Site &#8211; Sustaining Entrainment Velocity</title>
		<link>http://www.process-facility.com/well-site-sustaining-entrainment-velocity.html</link>
		<comments>http://www.process-facility.com/well-site-sustaining-entrainment-velocity.html#comments</comments>
		<pubDate>Sat, 03 Oct 2009 00:53:51 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>
		<category><![CDATA[Entrainment Velocity]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2222</guid>
		<description><![CDATA[When I first started troubleshooting partially depleted natural gas wells, I often wondered why so many of the hundred odd wells I visited were averaging 200-300 MSCFD. I had expected a more linear
distribution between the minimum gas production per well (20 MSCFD). Actually, 30 to 40% of the wells I observed clustered around an average [...]]]></description>
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		<title>Well Site &#8211; Entrainment Velocity</title>
		<link>http://www.process-facility.com/well-site-entraiment-velocity.html</link>
		<comments>http://www.process-facility.com/well-site-entraiment-velocity.html#comments</comments>
		<pubDate>Fri, 02 Oct 2009 23:58:28 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>
		<category><![CDATA[Entraiment Velocity]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2217</guid>
		<description><![CDATA[A well that produces 100,000 SCFD of gas as a minimum, but periodically reaches a peak production rate of 300,000 SCFD once a day, is continuously loading and unloading liquids. The sequence of
events are:
• The velocity of gas flowing up through the tubing is insufficient to entrain liquids out of the tubing to the surface.
• [...]]]></description>
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		<item>
		<title>Well Site &#8211; Liquid Loading</title>
		<link>http://www.process-facility.com/well-site-liquid-loading.html</link>
		<comments>http://www.process-facility.com/well-site-liquid-loading.html#comments</comments>
		<pubDate>Fri, 02 Oct 2009 23:44:31 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Liquid Loading]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2211</guid>
		<description><![CDATA[Although we have been talking about wellhead pressure (both shut-in and flowing tube), the wellhead pressure is just an indirect indication of the really important parameter-that is, the bottom hole pressure. It is the pressure inside the casing at the level of the perforations that determines gas flow. By lowering a pressure sensing instrument suspended [...]]]></description>
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		<title>Why Has Gas Flow Dropped ?</title>
		<link>http://www.process-facility.com/why-has-gas-flow-dropped.html</link>
		<comments>http://www.process-facility.com/why-has-gas-flow-dropped.html#comments</comments>
		<pubDate>Fri, 02 Oct 2009 23:38:05 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Well Site Troubleshooting]]></category>
		<category><![CDATA[GAS FLOW]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2207</guid>
		<description><![CDATA[We are assuming that the reservoir pressure and porosity are adequate — that is, there is a plentiful supply of gas in the ground for the well to draw on. Also, we are assuming that the permeability of the reservoir is sufficient to allow a relatively free flow of gas to the perforations in the [...]]]></description>
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		<item>
		<title>Gas Process Troubleshooting &#8211; Increasing Gas Flow at Wellhead</title>
		<link>http://www.process-facility.com/gas-process-troubleshooting-increasing-gas-flow-at-wellhead.html</link>
		<comments>http://www.process-facility.com/gas-process-troubleshooting-increasing-gas-flow-at-wellhead.html#comments</comments>
		<pubDate>Sun, 27 Sep 2009 03:46:55 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Well Site Troubleshooting]]></category>
		<category><![CDATA[wellhead]]></category>

		<guid isPermaLink="false">http://www.process-facility.com/?p=2176</guid>
		<description><![CDATA[There are three basic problems which reduce the flow of gas from a well which has a sufficient gas pressure, porosity and permeability in the surrounding sand formation to sustain a much
higher production rate:
1. Restriction to flow down hole such as occurs when sand covers the perforations in the casing.
2. Liquid loading of the production [...]]]></description>
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